Advanced Chemical Sensors, Inc.
Technical Information Sheet

Hydroquinone Monitor
Catalog No. OV-56

ACS Vapor Monitor can be worn as a badge near the breathing zone to measure personal exposure, or placed in a room to measure area concentration.

Occupational safety standards are based on personal exposure monitoring of each employee who may be exposed to the vapor as a regular part of their job. Periodic monitoring of personnel and room concentrations is recommended

Exposure Limits:	ACGIH	OSHA	NIOSH
TWA (ppm)	N/A	2 mg/m3	N/A
STEL/CEIL (ppm)	N/A	N/A	N/A

Sampling Medium:	2,4-DNPH Coated High-Purity Silica Gel
Method of Analysis:	High Pressure Liquid Chromatography
Reference Method:	NIOSH Method 5004
Recommended Sampling Time:	15 minutes to 8 hours
Minimum Level of Quantitation:	0.1 mg/m3 for 8 hours
Interferences:	No interferences are known.
Effect of Temperature:	Less than 10% for each 10 °C variation from 24 °C
Effect of Humidity:	No effects detected at 30% RH to 92% RH.
Overall System Accuracy:	16% at 2.0 mg/m3 for 8 hours
Storage Conditions:	Maximum shelf life six months. No special storage is required. Refrigeration will extend shelf life.
Recommended Holding Time:	Two weeks prior to analysis.

Advanced Chemical Sensors, Inc. Technical Information Sheet

Hydroquinone MonitorCatalog No. OV-56

Advanced Chemical Sensors, Inc.
Technical Information Sheet

Hydroquinone Monitor
Catalog No. OV-56